劳而无功

Explanation: Spend the effort, but did not receive results. 　　Usage: Contraction type; as predicate, object, attribute; used to evaluate the effect of a person to do things 　　Source: Qin Guan "pipe situation": "and not, the strong can not, sue I do not know, that's futile." 　　Examples: Pay no attention to science, blindly rash, the result will be ~. 　　Results: Zhuge Liang six Qishan 　　Postscript: Zhuge Liang six Qishan 　　Riddle: Snow filled wells Thesaurus:  drop a bucket into an empty well, a cup of water can't put out the fire on a carload of wood, be of no avail (=without avail), put a halter round one's neck, make a law only to fall foul of it oneself; be hoist with or by one’ s own petard; get caught in one’ s own trap, suicide, Moths Firefighting, Coke boil lapidation, Eggs and stone fight, whoever plays with fire will perish by fire, Cannibalism undesirable consequence, dig one’ s own grave, bring blame on oneself, make self-criticism as one who draws a fire against oneself, art of writing a composition Self-harm, a drop in the bucket Antonym Group:  Fain hair, Highly effective, Chuikang See m, Soratani microphone, be immediately effective, Tatemi result, Effective